Biogeochemical cycling of sulfur, manganese and iron in ferruginous limnic analog of Archean ocean

doi:10.1016/j.gca.2020.12.020

	Biogeochemical cycling of sulfur, manganese and iron in ferruginous limnic analog of Archean ocean
	Boyko, Valeria 2; Avetisyan, Khoren 2; Findlay, Alyssa 2; Guo, Qingjun 3; Yang, Xi 1,3; Pellerin, Andre 2,4; Kamyshny, Alexey, Jr.2
刊名	GEOCHIMICA ET COSMOCHIMICA ACTA
	2021-03-01
卷号	296 页码:56-74
关键词	Sulfur Iron Manganese Ferruginous lake Sulfur isotope fractionation Analog of Archean ocean
ISSN号	0016-7037
DOI	10.1016/j.gca.2020.12.020
通讯作者	Guo, Qingjun(guoqj@igsnrr.ac.cn) ; Kamyshny, Alexey, Jr.(kamyshny@bgu.ac.il)
英文摘要	The early evolution of life on Earth was intimately coupled with the evolution of ocean chemical composition and redox conditions in Archean ocean. However, the measurements of chemical and isotopic compositions of Archean sedimentary rocks does not provide sufficient information for understanding the biogeochemical processes that characterized oceans during this period. In this research, the cycling of the redox-sensitive elements in the water column and sediments of the seasonally stratified Lake Sihailongwan, China, was studied. It was found that during the stratification, the concentrations of sulfate ions in the epilimnion were <100 mu mol L-1. The hypolimnion of the lake becomes anoxic and contains iron, manganese and low concentrations of hydrogen sulfide. These conditions are similar to those suggested to exist in the Archean ocean, and therefore the biogeochemical cycles in Lake Sihailongwan may be analogous to those in the Archean ocean. In Lake Sihailongwan, the chemocline is always deeper than the thermocline. The hypolimnion is supersaturated with respect to iron sulfide in August, while in May and October, this supersaturation is present only in the lower hypolimnion. The concentration profiles of the redox species in the water column and in the sediments show that dissolved iron(II) and manganese(II) diffuse from the sediments into the water column, while hydrogen sulfide and sulfate diffuse into the sediment. At the hypolimnion, the sulfur isotope fractionation values are consistent with microbial sulfate reduction, possibly combined, to a minor extent, with disproportionation of zero-valent sulfur. The absolute sulfur isotope fractionation factor increases between spring and autumn and decreases with water depth, possibly due to precipitation of iron sulfide in the lower hypolimnion. The fraction of highly reactive iron in the sediments is mainly composed of iron(II) carbonates and the most reactive iron(III) (hydr)oxide phases. Iron-based redox proxies are consistent with sediment deposition under ferruginous water column conditions. In the sediment, concentrations of sulfate and hydrogen sulfide are low, and sulfur isotope composition of sedimentary pyrite is equal to that of the epilimnetic sulfate. The obtained results demonstrated that despite a low sulfate concentration in the water column, sulfur isotope fractionation is high. However, due to the complete consumption of the sulfate reservoir, the large isotope fractionation is not preserved in the sedimentary record. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[2214/115] ; Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[NSFC 41561144005] ; Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[41625006] ; Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[41761144066] ; Fulbright Postdoctoral Fellowship ; Marie Curie European Fellowship[SedSulphOx 746872] ; Zuckerman STEM Leadership program ; Kreitman Fellowship
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000623916400004
资助机构	Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC) ; Fulbright Postdoctoral Fellowship ; Marie Curie European Fellowship ; Zuckerman STEM Leadership program ; Kreitman Fellowship
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160473]
专题	中国科学院地理科学与资源研究所
通讯作者	Guo, Qingjun; Kamyshny, Alexey, Jr.
作者单位	1.Tianjin Normal Univ, Tianjin Key Lab Water Resources & Environm, Tianjin 300387, Peoples R China 2.Ben Gurion Univ Negev, Fac Nat Sci, Dept Geol & Environm Sci, POB 653, IL-84105 Beer Sheva, Israel 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Aarhus Univ, Dept Biol Microbiol, DK-8000 Aarhus, Denmark
推荐引用方式 GB/T 7714	Boyko, Valeria,Avetisyan, Khoren,Findlay, Alyssa,et al. Biogeochemical cycling of sulfur, manganese and iron in ferruginous limnic analog of Archean ocean[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2021,296:56-74.
APA	Boyko, Valeria.,Avetisyan, Khoren.,Findlay, Alyssa.,Guo, Qingjun.,Yang, Xi.,...&Kamyshny, Alexey, Jr..(2021).Biogeochemical cycling of sulfur, manganese and iron in ferruginous limnic analog of Archean ocean.GEOCHIMICA ET COSMOCHIMICA ACTA,296,56-74.
MLA	Boyko, Valeria,et al."Biogeochemical cycling of sulfur, manganese and iron in ferruginous limnic analog of Archean ocean".GEOCHIMICA ET COSMOCHIMICA ACTA 296(2021):56-74.